REP07779

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 5/8/1995
• Doc Name: MOUNTAIN COAL CO WEST ELK MINE PN C-80-007 ANNUAL SUBSIDENCE REPORT YEAR-END REPORT
• From: MOUNTAIN COAL CO
• To: DMG
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

WEST ELK MINE &SEAM SUBSIDENCE UPDATE THROUGH OCTOBER 1994
SUBSIDENCE POINTY
x El
x E2 E3 E4 E5 NO N7
PRE-MINING NORTHING 396419.34 395413.08 S 785400.38 x x395Jee.e5 395394.27 ~ =398388.98 788498.50
B SEAM FASTING 1443009.29 1443188.15 1443285.83 1443385.85 1663686.89 1442073.70 1442080.29
SURVEY Y1 ELEVATION 7470.75 7448.15 7438.49 7431.08 7440.39 7991.99 7878.54
OCT. 1991
PRE-MINING NORTHING' x 385419.31 ~ 395613.02 395400.28 395399.88 x396396.02 x390388.79 390698.48
B SEAM FASTING 1447088.11 1443105.88 1663285.38 1443385.88 1443495.62 1442073.86 1442080.34
SURVEY s2 ELEVATION 7478.87 7448.23 7438.02 7431.18 7460.50 7881.80 7878.54
JUNE 1992
AVERAGE OF NORTHING x 395419.73 ' 385413.05 396409.36 x x 395399.87 x 396794.15 S x 398798.88 x x 398488.52
PRE-MINING FASTING 1443088.20 1443188.02 1443205.51 1443395.97 1663495.81 1442073.78 1442080.32
&SEAM ELEVATION 7678.81 7648.19 7438.50 7431.14 7440.46 7881.88 7870.56
POST-MINING NORTHING x x 395418.90 395412.57 x 395405.85 x x 395399.20 x x 395393.38 x 380388.52 x x 398488.19
FISEAM FASTING 1443000.27 1443185.87 1443205.88 1463305.08 1663485.05 1442073.00 1442079.87
SURVEY A3 ELEVATION 7478.98 7448.39 7478.77 7671.32 7440.84 7880.90 7875.13
OCT. 1992
POST-MINING NORTHINGS 395418.97 395412.40 395405.50 x385398.03 395393.61 390390.80 398498.53
B-SEAM FASTING 1443088.21 1443185.87 1443285.02 1447785.85 1443485.05 1441072.09 1642078.55
SURVEY A4 ELEVATION 7477.41 7448.82 7479.23 7431.81 7441.14 7870.50 7871.24
JUL. 1993
POST-MINING NORTHING 395419.18 395412.90 395408.07 395399.02 5795793.95 388380.51 790490.53
B-SEAM FASTING 1447088.19 1463185.96 1463285.55 1443385.84 1443485.20 1442070.97 1442077.83
SURVEY A5 ELEVATION 7478.79 7448.18 7438.58 7431.15 7440.50 7875 31 7870.58
OCT. 1993
POST-MINING NORTHINGS x 395619.02 395412.70 395405.91 395398.48 395393.52 390380.40 x 398480.20
B-SEAM FASTING 1443005.94 1443185.59 1443205.20 1443305.29 1443405.53 1442070.01 1442070.91
SURVEY p0 ELEVATION 7478.79 7648.20 7438.87 7431.19 7440.53 7875.78 7870.54
JUL. 1894
POST-MINING NORTHING S 395418.57 395413.21 395408.25 5 S 395399.98 395394.12 x790390.03 390498.54
&SEAM FASTING 1443085.98 1443105.84 1447285.80 1443308.80 1443485.03 1442070.30 1442078.80
SURVEY A7 ELEVATION 7478.38 7447.75 7638.12 7430.70 7440.02 7875.82 7870.54
OCT. 1994
SUBSIDENCE ICURRENTI x xxxxxxx x xxxxxx x xxxxxx xxxxxxx xxxxxxx xxxxxxx x xxxxx_
Iram JUL. 1994 to OCT. 1994 0.40 0.45 0.49 O.d9 0.51 -0.06 0.00
1-) Indieatee Flies in Elevation
TOTAL SUBSIDENCES--=- xxxx-O.dY x x==x0.44 _ _===0.44 --_5=0.44 ===--O.d2 xxx=x0.00 x xxxx 0.00
from avsrepe prsmininp survey
to OCT. 1894
xxxxxxx xxxxxxx
AV N.-10/92 N. xxxxxxx = xxxxxx x xxxxxx xxxxxxx xxxxxxx xxxxxxx
0.35 xxxxxxx
0.33
AV E. - 10/92 E. 0.17 0.44
AV EL - 10/92 EL
xxx 0.91 1.41
10/92 N.-7/97 N._x_ xxxxxxx x xxxxxx x xxxxxx xxxxxxx xxxx SxS xxxx=1.92 x_xx51.88
10/92 E. - 7/93 E. 1.51 1.32
10/92 EL - 7/93 EL
x
_
__
_
_
_
_ 4.60 3.89
xx
xxx5 Sxxx SSS
7/93 N.- 10!93 N. xxxxxxx x xxxxxx x xxxxxx __
_
_
_
_
_ xx=xxxx xxxxxxx
0.09 xxxxxxx
0.00
7/93 E. - 10/93 E. 1.12 0.92
7/93 0. - 10/93 0. 0.09 0.08
SS Sxxxx xxxxxxx
1019) N.• 7/96 N. xxxxxxx x xxxxxx x xxxxxx xxxxxxx xxxxxxx xxxxxxx
0.11 xxxxxxx
0.33
10/93 E. - 7/94 E. 0.30 0.72
10/93 EL - 7/94 EL 0.03 0.02
7/96N -10/94 N.---_xS xxxxxxx x xxxxxx x xxxxxx xx SSS xx xxxxxx= =55050.23 xxxxx 0.34
7/94 E. - 10/94 E. 0.31 0.11
7/94 0. - 10/94 EL 0.00 0.00
Pape 1